//package com.wildlife.springboot.config.interceptor;
//
//import cn.hutool.core.util.StrUtil;
//import com.auth0.jwt.JWT;
//import com.auth0.jwt.JWTVerifier;
//import com.auth0.jwt.algorithms.Algorithm;
//import com.auth0.jwt.exceptions.JWTDecodeException;
//import com.auth0.jwt.exceptions.JWTVerificationException;
//import com.wildlife.springboot.common.Constants;
//import com.wildlife.springboot.entity.User;
//import com.wildlife.springboot.exception.ServiceException;
//import com.wildlife.springboot.service.IUserService;
//import jakarta.servlet.http.HttpServletRequest;
//import jakarta.servlet.http.HttpServletResponse;
//import org.springframework.beans.factory.annotation.Autowired;
//import org.springframework.web.method.HandlerMethod;
//import org.springframework.web.servlet.HandlerInterceptor;
//
//
//public class JwtInterceptor implements HandlerInterceptor {
//
//    @Autowired
//    private IUserService userService;
//    @Override
//    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
//        String token = request.getHeader("token");
//        // 如果不是映射到方法直接通过
//        if(!(handler instanceof HandlerMethod)) {
//            return true;
//        }
//
//        // 执行认证
//        if(StrUtil.isBlank(token)) {
//            throw new ServiceException(Constants.CODE_401, "无token，请重新登录");
//        }
//
//        // 获取 token 中的 user id
//        String userId;
//        try {
//            userId = JWT.decode(token).getAudience().get(0);
//        } catch (JWTDecodeException j) {
//            throw new ServiceException(Constants.CODE_401, "token验证失败，请重新登录");
//        }
//
//        // 根据token中的userid查询数据库
//        User user = userService.getById(userId);
//        if (user == null) {
//            throw new ServiceException(Constants.CODE_401, "用户不存在，请重新登录");
//        }
//
//        // 用户密码加签 验证token
//        JWTVerifier jwtVerifier = JWT.require(Algorithm.HMAC256(user.getPassword())).build();
//        try {
//            jwtVerifier.verify(token);
//        } catch (JWTVerificationException e) {
//            throw new ServiceException(Constants.CODE_401, "token验证失败，请重新登录");
//        }
//        return true;
//    }
//}
